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r.mapcalculator(1grass) Grass User's Manual r.mapcalculator(1grass)

NAME

r.mapcalculator - Calculate new raster map from a r.mapcalc expression.

KEYWORDS

SYNOPSIS

r.mapcalculator
 
r.mapcalculator help
 
r.mapcalculator [-eo] [amap=string] [bmap=string] [ cmap=string] [dmap=string] [ emap=string] [fmap=string] formula=string outfile=string [ help=string] [--overwrite] [-- verbose] [--quiet]

Flags:

-e
 
Expert mode (enter a set of r.mapcalc expressions)
-o
 
Do not overwrite existing map
--overwrite
 
Allow output files to overwrite existing files
--verbose
 
Verbose module output
--quiet
 
Quiet module output

Parameters:

amap=string
 
A
bmap=string
 
B
cmap=string
 
C
dmap=string
 
D
emap=string
 
E
fmap=string
 
F
formula=string
 
Formula (e.g. A-B or A*C+B)
outfile=string
 
Name for output raster map
help=string
 
Show help
 
Options: -,help,man
 
Default: -

DESCRIPTION

r.mapcalculator provides a GUI frontend to r.mapcalc. Up to 5 maps can be combined using simple expressions. In the expert mode, it runs r.mapcalc for more complex expressions. Enter an r.mapcalc expression in the formula field using the format: A+C or exp(A+C)+(B-2)*7 where A, B, C are raster maps entered in the A field, B field, and C field.
Do not enter output file in the formula field: correct: A+B; incorrect: newfile = A+B. Use no spaces or blanks.
Expert mode runs r.mapcalc for more complex expressions.

SEE ALSO

r.mapcalc

AUTHOR

R. Brunzema (r.brunzema@web.de)
 
Updated to GRASS 5.7 by Michael Barton, Arizona State University
Last changed: $Date: 2011-11-08 10:42:51 +0100 (Tue, 08 Nov 2011) $
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